I like what you have done. I have 6 taps on mine... and a 25.3 cuft chest freezer... One thing that I will be doing with mine is removing the air and putting it outside... I like to cold crash my beers and having loads of kegs in there and carboys/ buckets can be a bit problematic... You might want to consider this as well.. Mine is nothing special but: here's how I did my wood top:

Please excuse the messy basement... Its since been cleaned... oh yea and the crap beer is no longer in there either.

I tested out my wiring by breathing on the unit to bring the probe out of temperature range. To check and make sure it would shut off, I put the probe in ice water. It immediately shut off! I was very happy about this as I've been dreading wiring it for a while.